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    [Dev] Feathercoin 0.9.6.2 * Maintenance fix, build & upgrade issues notes.

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    • wrapper
      wrapper Moderators last edited by

      @Cookieboy Docker Test set-ups OpenName?

      https://michael.mckinnon.id.au/2016/05/13/building-a-namecoin-server-with-ubuntu-16-04/

      1 Reply Last reply Reply Quote 0
      • wrapper
        wrapper Moderators last edited by wrapper

        [FAQ] Is it trivial to change a Feathercoin portable wallet file to libdb 4.8?

        Version 4.8 is not a requirement, just a recommendation. You can compile your own version and use newer versions of BDB by passing --with-incompatible-bdb to configure.

        The main reason it is discouraged is because it breaks compatibility with the pre-built binaries. If you’re building from source you may not care.

        But even if you do, it is trivial to convert your wallet back to a 4.8 wallet if you’re stuck with a 5.1 or 5.3 one. Use the bdb tools (packages db4.8-util db5.1-util on Ubuntu):

        Code:

        db5.1_dump wallet.dat.db5 | db4.8_load wallet.dat.db4
        

        [Ref:]
        https://bitcointalk.org/index.php?topic=502482.0

        Wellenreiter 1 Reply Last reply Reply Quote 0
        • wrapper
          wrapper Moderators last edited by wrapper

          0.9.6.2 resync from scratch - debug.log size

          Debug.log size ~8GB

          Example messages :

          2017-09-08 11:01:02 FindStealthTransactions() tx:1a6d82536f8800f9535af0d921c9c4b0bd5ed63f7ed98d496ea489a3c96199d6,BOOST_$
          2017-09-08 11:01:02 txout scriptPubKey= 02bdd2463b241c6983e30fcec049028bd35a2c46b27751267e097d7ea730d86477 OP_CHECKSIG
          2017-09-08 11:01:02 txout hash = a70281794fa18919284ce0825bb97985be0fd5351d70790f18cb295171a032cf
          2017-09-08 11:01:02 ProcessBlock: ACCEPTED
          2017-09-08 11:01:02 ProcessBlock: Preliminary checks
          2017-09-08 11:01:02 AcceptBlockHeader,nHeight=14138
          2017-09-08 11:01:02 GetNextWorkRequired pindexLast block Height=14137,nBits=486604799
          2017-09-08 11:01:02 GetNextWorkRequired the next block Height=14138
          2017-09-08 11:01:02 GetNextWorkRequired fork
          2017-09-08 11:01:02 ConnectBlock hashPrevBlock=da6f4030e5784d44bf6487f714f97364c4d1d4230c7921ac83fbdb0a75b3da9d
          2017-09-08 11:01:02 ConnectBlock view.GetBestBlock()=da6f4030e5784d44bf6487f714f97364c4d1d4230c7921ac83fbdb0a75b3da9d
          2017-09-08 11:01:02 AddToWalletIfInvolvingMe,hash=53e2bcbb25acf1d2a5f14f8fa21f1251ec533567ca9c0cf7431fe27944d4f55e .
          
          2017-09-08 11:01:45 ERROR: ProcessBlock() : already have block 528 3d00776e6a58b274553a08f865f243e4c76d2ff2f2bdc80ae9d65$
          2017-09-08 11:01:45 ERROR: ProcessBlock() : already have block 529 8f9ce5631e4da83f485bbaabd05b2103e2031cc171f3bd19c424f$
          2017-09-08 11:01:45 ERROR: ProcessBlock() : already have block 530 5e552737f864c8e40b8870fa6005cda91801042e67d41f96a352b$
          
          
          2017-09-08 11:13:59 BOOST_FOREACH nOutputIdOuter=1 ,find txout...
          2017-09-08 11:13:59 txout scriptPubKey= OP_DUP OP_HASH160 70fd39db258cc19a4d89a3ab0e329927c1688e07 OP_EQUALVERIFY OP_CHECKSIG
          2017-09-08 11:13:59 txout hash = 42c514bfd4afd25857c86633b4a645a94a15326308d42a4c63e42bc7a7f0d2d9
          2017-09-08 11:13:59 AddToWalletIfInvolvingMe,hash=1dd3621d64f782e0c8200c4063283d38189d1c29976fb0597e674c4ef249c612 .
          2017-09-08 11:13:59 FindStealthTransactions() tx:1dd3621d64f782e0c8200c4063283d38189d1c29976fb0597e674c4ef249c612,BOOST_FOREACH nOutputIdOuter=0 ,find txout...
          2017-09-08 11:13:59 txout scriptPubKey= OP_DUP OP_HASH160 f1f717b9371a1a39a1c96f1138e0207f44e9b1fc OP_EQUALVERIFY OP_CHECKSIG
          2017-09-08 11:13:59 txout hash = beee7a6b781b42fcb81f0e64be3df2e5d8b7dbad17ffb94ab258bd83e705a4fb
          2017-09-08 11:13:59 BOOST_FOREACH nOutputIdOuter=1 ,find txout...
          
          2017-09-08 11:48:16 AcceptBlockHeader,nHeight=212619 
          2017-09-08 11:48:16 GetNextWorkRequired pindexLast block Height=212618,nBits=470153547 
          2017-09-08 11:48:16 GetNextWorkRequired the next block Height=212619 
          2017-09-08 11:48:16 GetNextWorkRequired fork
          2017-09-08 11:48:16 Difficulty rules regular blocks 
          2017-09-08 11:48:16 GetNextWorkRequired(), nActualTimespan = 4  before bounds
          2017-09-08 11:48:16 RETARGET: nActualTimespanShort = 86, nActualTimespanMedium = 71, nActualTimespanLong = 65, nActualTimeSpanAvg = 74, nActualTimespan (damped) = 63
          2017-09-08 11:48:16 RETARGET: nActualTimespan = 63 after bounds
          2017-09-08 11:48:16 RETARGET: nTargetTimespan = 60, nTargetTimespan/nActualTimespan = 0.9524
          2017-09-08 11:48:16 GetNextWorkRequired RETARGET
          2017-09-08 11:48:16 nTargetTimespan = 60    nActualTimespan = 63
          2017-09-08 11:48:16 Before: 1c05f94b  0000000005f94b00000000000000000000000000000000000000000000000000
          2017-09-08 11:48:16 After:  1c0645c1  000000000645c1f3333333333333333333333333333333333333333333333333
          2017-09-08 11:48:16 ConnectBlock hashPrevBlock=c99dcb4dfb188f08e113cc0227dbb078b91a2ba1eb211747df6e93c2a3c1f8f9 
          2017-09-08 11:48:16 ConnectBlock view.GetBestBlock()=c99dcb4dfb188f08e113cc0227dbb078b91a2ba1eb211747df6e93c2a3c1f8f9 
          
          2017-09-08 18:06:29 txout hash = bb18e80f5d0fb64e8ef641b915529ac5e163a65c542117285e35fae601fb1e72
          2017-09-08 18:06:29 ProcessBlock: ACCEPTED
          2017-09-08 18:06:29 ProcessBlock: Preliminary checks 
          2017-09-08 18:06:29 ERROR: matches claimed amount, CheckProofOfWork() : hash doesn't match nBits
          2017-09-08 18:06:29 AcceptBlockHeader,nHeight=808507 
          2017-09-08 18:06:29 GetNextWorkRequired pindexLast block Height=808506,nBits=471031556 
          2017-09-08 18:06:29 GetNextWorkRequired the next block Height=808507 
          
          UpdateTip: new best=90ff2216fefd3585d6227b9ad98742c2dee0799950f96008c739853aeaa00a91  height=762942  log2_work=57.908051  tx=2002507  date=2015-06-23 16:01:34 progress=0.476417
          
          1 Reply Last reply Reply Quote 0
          • Wellenreiter
            Wellenreiter Moderators @wrapper last edited by

            @wrapper said in [Dev] Feathercoin 0.9.6.2 * Maintenance fix, build & upgrade issues notes.:

            [FAQ] Is it trivial to change a Feathercoin portable wallet file to libdb 4.8?

            Version 4.8 is not a requirement, just a recommendation. You can compile your own version and use newer versions of BDB by passing --with-incompatible-bdb to configure.

            The main reason it is discouraged is because it breaks compatibility with the pre-built binaries. If you’re building from source you may not care.

            But even if you do, it is trivial to convert your wallet back to a 4.8 wallet if you’re stuck with a 5.1 or 5.3 one. Use the bdb tools (packages db4.8-util db5.1-util on Ubuntu):

            Code:

            db5.1_dump wallet.dat.db5 | db4.8_load wallet.dat.db4
            

            [Ref:]
            https://bitcointalk.org/index.php?topic=502482.0

            Well if one needs to convert the db, it would be easier to export the private keys, compile a wallet with the desired bdb version and import the private keys again.

            Our precompiled Linux binaries contained in the installation packages care compiled with the default bdb contained in the distributions, so they will work on a given system/distribution.

            Feathercoin development donation address: 6p8u3wtct7uxRGmvWr2xvPxqRzbpbcd82A
            Openpgp key: 0x385C34E77F0D74D7 (at keyserver.ubuntu.com)/fingerprint: C7B4 E9EA 17E1 3D12 07AB 1FDB 385C 34E7 7F0D 74D7

            wrapper 1 Reply Last reply Reply Quote 0
            • wrapper
              wrapper Moderators @Wellenreiter last edited by wrapper

              @Wellenreiter said in [Dev] Feathercoin 0.9.6.2 * Maintenance fix, build & upgrade issues notes.:

              Well if one needs to convert the db, it would be easier to export the private keys, compile a wallet with the desired bdb version and import the private keys again.

              Good idea but (re: Catch22) I can’t read the wallet.dat to export the private keys, as it says it is corrupt.

              Wellenreiter 1 Reply Last reply Reply Quote 0
              • Wellenreiter
                Wellenreiter Moderators @wrapper last edited by

                @wrapper

                Always do backups in time ;)
                you are in the worst situation, that can happen…

                Feathercoin development donation address: 6p8u3wtct7uxRGmvWr2xvPxqRzbpbcd82A
                Openpgp key: 0x385C34E77F0D74D7 (at keyserver.ubuntu.com)/fingerprint: C7B4 E9EA 17E1 3D12 07AB 1FDB 385C 34E7 7F0D 74D7

                1 Reply Last reply Reply Quote 0
                • wrapper
                  wrapper Moderators last edited by wrapper

                  A new version of zxing-cpp (zebra crossing QR code library), has been released.

                  https://github.com/glassechidna/zxing-cpp/pull/57

                  *   Installation working as a configuration package
                  *   Fix source listing to not use GLOB per CMake recommendation. Files
                      are listed explicitly in source_files.cmake so that if file listing
                      changes, CMake can detect it and regenerate as needed.
                  *   Added debug postfix for libs for side-by-side installation of different
                      build variants (libzxing.lib and libzxing-debug.lib on Windows)
                  
                  Notes:
                  
                  *  Proper versioning is not being done in the installation config package. If a version is known, it should be added.
                  *  I had to comment out the windows-specific stuff (core/win32) because it caused compiler issues in Windows SDK headers.
                  
                  Wellenreiter 1 Reply Last reply Reply Quote 0
                  • wrapper
                    wrapper Moderators last edited by wrapper

                    Sync test from Bootstrap.dat 0.9.6.2 – Debug.log spam messages 8.5GB 35-hours

                    Needs further investigation

                    This message It has been reported as superflous error, it does not seem to indicate a fault. It incorrectly specified error message.

                    ERROR: matches claimed amount, CheckProofOfWork() : hash doesn’t match nBits
                    https://github.com/FeatherCoin/Feathercoin/blob/master-0.9/src/main.cpp#L1502

                    Need “removing” from release build

                    FindStealthTransactions() tx:1a6d82536f8800f9535af0d921c9c4b0bd5ed63f7ed98d496ea489a3c96199d6,BOOST_$
                    https://github.com/FeatherCoin/Feathercoin/blob/master-0.9/src/wallet.cpp#L1961

                    txout scriptPubKey
                    https://github.com/FeatherCoin/Feathercoin/blob/master-0.9/src/wallet.cpp#L1985

                    txout hash =
                    https://github.com/FeatherCoin/Feathercoin/blob/master-0.9/src/wallet.cpp#L1986

                    ProcessBlock: ACCEPTED
                    https://github.com/FeatherCoin/Feathercoin/blob/master-0.9/src/main.cpp#L3265

                    ProcessBlock: Preliminary checks
                    https://github.com/FeatherCoin/Feathercoin/blob/master-0.9/src/main.cpp#L3198

                    AcceptBlockHeader,nHeight=
                    https://github.com/FeatherCoin/Feathercoin/blob/master-0.9/src/main.cpp#L2936

                    GetNextWorkRequired pindexLast
                    https://github.com/FeatherCoin/Feathercoin/blob/master-0.9/src/main.cpp#L1313

                    GetNextWorkRequired the next block Height=14138
                    https://github.com/FeatherCoin/Feathercoin/blob/master-0.9/src/main.cpp#L1314

                    GetNextWorkRequired fork
                    https://github.com/FeatherCoin/Feathercoin/blob/master-0.9/src/main.cpp#L1323

                    ConnectBlock hashPrevBlock=
                    https://github.com/FeatherCoin/Feathercoin/blob/master-0.9/src/main.cpp#L1952

                    ConnectBlock view.GetBestBlock()=
                    https://github.com/FeatherCoin/Feathercoin/blob/master-0.9/src/main.cpp#L1953

                    AddToWalletIfInvolvingMe,hash=5
                    https://github.com/FeatherCoin/Feathercoin/blob/master-0.9/src/wallet.cpp#L708

                    ERROR: ProcessBlock() : already have block 528
                    https://github.com/FeatherCoin/Feathercoin/blob/master-0.9/src/main.cpp#L3193

                    BOOST_FOREACH nOutputIdOuter=1 ,find txout…
                    https://github.com/FeatherCoin/Feathercoin/blob/master-0.9/src/wallet.cpp#L708

                    txout scriptPubKey= OP_DUP OP_HASH160
                    https://github.com/FeatherCoin/Feathercoin/blob/master-0.9/src/wallet.cpp#L1985

                    Difficulty rules regular blocks
                    https://github.com/FeatherCoin/Feathercoin/blob/master-0.9/src/main.cpp#L3193

                    GetNextWorkRequired(), nActualTimespan = 4 before bounds
                    https://github.com/FeatherCoin/Feathercoin/blob/master-0.9/src/main.cpp#L1383

                    RETARGET: nActualTimespanShort = 86, nActualTimespanMedium = 71, nActualTimespanLong = 65, nActualTimeSpanAvg = 74, nActualTimespan (damped) = 63
                    https://github.com/FeatherCoin/Feathercoin/blob/master-0.9/src/main.cpp#L1442

                    RETARGET: nActualTimespan = 63 after bounds
                    https://github.com/FeatherCoin/Feathercoin/blob/master-0.9/src/main.cpp#L1465

                    RETARGET: nTargetTimespan = 60, nTargetTimespan/nActualTimespan = 0.9524
                    https://github.com/FeatherCoin/Feathercoin/blob/master-0.9/src/main.cpp#L1466

                    GetNextWorkRequired RETARGET
                    https://github.com/FeatherCoin/Feathercoin/blob/master-0.9/src/main.cpp#L1480

                    nTargetTimespan = 60 nActualTimespan = 63
                    https://github.com/FeatherCoin/Feathercoin/blob/master-0.9/src/main.cpp#L1481

                    Before: 1c05f94b 0000000005f94b00000000000000000000000000000000000000000000000000
                    https://github.com/FeatherCoin/Feathercoin/blob/master-0.9/src/main.cpp#L1482

                    After: 1c0645c1 000000000645c1f3333333333333333333333333333333333333333333333333
                    https://github.com/FeatherCoin/Feathercoin/blob/master-0.9/src/main.cpp#L1483

                    UpdateTip: new best=90ff2216fefd3585d6227b9ad98742c2dee0799950f96008c739853aeaa00a91 height=762942 log2_work=57.908051 tx=2002507 date=2015-06-23 16:01:34 progress=0.476417
                    https://github.com/FeatherCoin/Feathercoin/blob/master-0.9/src/main.cpp#L2139

                    1 Reply Last reply Reply Quote 0
                    • Wellenreiter
                      Wellenreiter Moderators @wrapper last edited by

                      @wrapper said in [Dev] Feathercoin 0.9.6.2 * Maintenance fix, build & upgrade issues notes.:

                      A new version of zxing-cpp (zebra crossing QR code library), has been released.

                      Just triggered a build on the package repository.

                      Feathercoin development donation address: 6p8u3wtct7uxRGmvWr2xvPxqRzbpbcd82A
                      Openpgp key: 0x385C34E77F0D74D7 (at keyserver.ubuntu.com)/fingerprint: C7B4 E9EA 17E1 3D12 07AB 1FDB 385C 34E7 7F0D 74D7

                      1 Reply Last reply Reply Quote 1
                      • wrapper
                        wrapper Moderators last edited by wrapper

                        main.cpp#L1488

                        bool CheckProofOfWork(uint256 hash, unsigned int nBits)
                        {
                            CBigNum bnTarget;
                            bnTarget.SetCompact(nBits);
                        
                            // Check range
                            if (bnTarget <= 0 || bnTarget > Params().ProofOfWorkLimit())
                                return error("Check range CheckProofOfWork() : nBits below minimum work");
                        
                            // Check proof of work matches claimed amount
                            //LogPrintf("CheckProofOfWork() hash=%s \n",hash.ToString().c_str());
                            //LogPrintf("CheckProofOfWork() nBits=%i \n",nBits);
                            //LogPrintf("CheckProofOfWork() bnTarget.getuint256=%s \n",bnTarget.getuint256().ToString().c_str());
                            if (hash > bnTarget.getuint256())
                                return error("matches claimed amount, CheckProofOfWork() : hash doesn't match nBits");
                        
                        return true;
                        
                        1 Reply Last reply Reply Quote 0
                        • wrapper
                          wrapper Moderators last edited by wrapper

                          First block with error message is block : 432000 (const int nForkFour = 432000;)

                          ERROR: matches claimed amount, CheckProofOfWork()
                          

                          All blocks after that have the message, checked up to block 1877425

                          1 Reply Last reply Reply Quote 0
                          • wrapper
                            wrapper Moderators last edited by wrapper

                            Debug.log with additional getwork debug messages

                            2017-09-13 12:49:22 ProcessBlock: Preliminary checks
                            2017-09-13 12:49:22 CheckProofOfWork() hash=5e6ccf101129ccb808cea67cfbe94cf4784718214cfde7dc1909a0402ae1ef6d
                            2017-09-13 12:49:22 CheckProofOfWork() nBits=473517455
                            2017-09-13 12:49:22 CheckProofOfWork() bnTarget.getuint256=00000000394d8f00000000000000000000000000000000000000000000000000
                            2017-09-13 12:49:22 ERROR: matches claimed amount, CheckProofOfWork() : hash doesn't match nBits
                            2017-09-13 12:49:22 CheckProofOfWork() hash=00000000058213077e5dc035dbe8a5425695dc8dce74806cbb2cdc225fafcb8e
                            2017-09-13 12:49:22 CheckProofOfWork() nBits=473517455
                            2017-09-13 12:49:22 CheckProofOfWork() bnTarget.getuint256=00000000394d8f00000000000000000000000000000000000000000000000000
                            2017-09-13 12:49:22 AcceptBlockHeader,nHeight=436027
                            2017-09-13 12:49:22 GetNextWorkRequired pindexLast block Height=436026,nBits=473715109
                            2017-09-13 12:49:22 GetNextWorkRequired the next block Height=436027
                            2017-09-13 12:49:22 GetNextWorkRequired fork
                            2017-09-13 12:49:22 Difficulty rules regular blocks
                            2017-09-13 12:49:22 GetNextWorkRequired(), nActualTimespan = 15  before bounds
                            2017-09-13 12:49:22 RETARGET: nActualTimespanShort = 25, nActualTimespanMedium = 61, nActualTimespanLong = 61, nActualTimeSpanAvg = 49, nActua$
                            2017-09-13 12:49:22 CheckProofOfWork() hash=00000000058213077e5dc035dbe8a5425695dc8dce74806cbb2cdc225fafcb8e
                            2017-09-13 12:49:22 CheckProofOfWork() nBits=473517455
                            2017-09-13 12:49:22 CheckProofOfWork() bnTarget.getuint256=00000000394d8f00000000000000000000000000000000000000000000000000
                            2017-09-13 12:49:22 CheckProofOfWork() hash=00000000058213077e5dc035dbe8a5425695dc8dce74806cbb2cdc225fafcb8e
                            2017-09-13 12:49:22 CheckProofOfWork() nBits=473517455
                            2017-09-13 12:49:22 CheckProofOfWork() bnTarget.getuint256=00000000394d8f00000000000000000000000000000000000000000000000000
                            2017-09-13 12:49:22 CheckProofOfWork() hash=00000000058213077e5dc035dbe8a5425695dc8dce74806cbb2cdc225fafcb8e
                            2017-09-13 12:49:22 CheckProofOfWork() nBits=473517455
                            2017-09-13 12:49:22 CheckProofOfWork() bnTarget.getuint256=00000000394d8f00000000000000000000000000000000000000000000000000
                            2017-09-13 12:49:22 ConnectBlock hashPrevBlock=a521017bff5487651b402d64e04b7a2c67972de92013976ddfc73409680a756b
                            2017-09-13 12:49:22 ConnectBlock view.GetBestBlock()=a521017bff5487651b402d64e04b7a2c67972de92013976ddfc73409680a756b
                            2017-09-13 12:49:22 AddToWalletIfInvolvingMe,hash=cf978ce4ae56e68df19853d101aa59f836b481ed49d430a081985a275c358f68 .
                            2017-09-13 12:49:22 FindStealthTransactions() tx:cf978ce4ae56e68df19853d101aa59f836b481ed49d430a081985a275c358f68,BOOST_FOREACH nOutputIdOuter$
                            2017-09-13 12:49:22 txout scriptPubKey= OP_DUP OP_HASH160 6016bc7b58ccc4f826213591cc8adfaebf922f6c OP_EQUALVERIFY OP_CHECKSIG
                            2017-09-13 12:49:22 txout hash = c7a5ccaede5d3271df6e5026bf80f2e7c6e895bf5a6d9b8f4f6a38536fcd3589
                            2017-09-13 12:49:22 UpdateTip: new best=3d352ee58088a8947481f692d1e23c77a301d8104458cae19f74e30faa65b01c  height=436027  log2_work=57.827711  $
                            2017-09-13 12:49:22 AddToWalletIfInvolvingMe,hash=cf978ce4ae56e68df19853d101aa59f836b481ed49d430a081985a275c358f68 .
                            2017-09-13 12:49:22 FindStealthTransactions() tx:cf978ce4ae56e68df19853d101aa59f836b481ed49d430a081985a275c358f68,BOOST_FOREACH nOutputIdOuter$
                            2017-09-13 12:49:22 txout scriptPubKey= OP_DUP OP_HASH160 6016bc7b58ccc4f826213591cc8adfaebf922f6c OP_EQUALVERIFY OP_CHECKSIG
                            2017-09-13 12:49:22 txout hash = c7a5ccaede5d3271df6e5026bf80f2e7c6e895bf5a6d9b8f4f6a38536fcd3589
                            2017-09-13 12:49:22 ProcessBlock: ACCEPTED
                            2017-09-13 12:49:22 ProcessBlock: Preliminary checks
                            2017-09-13 12:49:22 CheckProofOfWork() hash=0f97d9fef076fb1ab9d0c41c106a49f7a2017982ca27579162d6c358ac513af9
                            2017-09-13 12:49:22 CheckProofOfWork() nBits=473329684
                            2017-09-13 12:49:22 CheckProofOfWork() bnTarget.getuint256=0000000036701400000000000000000000000000000000000000000000000000
                            2017-09-13 12:49:22 ERROR: matches claimed amount, CheckProofOfWork() : hash doesn't match nBits
                            2017-09-13 12:49:22 CheckProofOfWork() hash=0000000009706efc0793c5b26d4a24488be0224a8cb4889c87e003bfbb8f8879
                            2017-09-13 12:49:22 CheckProofOfWork() nBits=473329684
                            2017-09-13 12:49:22 CheckProofOfWork() bnTarget.getuint256=0000000036701400000000000000000000000000000000000000000000000000
                            2017-09-13 12:49:22 AcceptBlockHeader,nHeight=436028
                            2017-09-13 12:49:22 GetNextWorkRequired pindexLast block Height=436027,nBits=473517455
                            2017-09-13 12:49:22 GetNextWorkRequired the next block Height=436028
                            2017-09-13 12:49:22 GetNextWorkRequired fork
                            2017-09-13 12:49:22 Difficulty rules regular blocks
                            2017-09-13 12:49:22 GetNextWorkRequired(), nActualTimespan = 38  before bounds
                            2017-09-13 12:49:22 RETARGET: nActualTimespanShort = 26, nActualTimespanMedium = 62, nActualTimespanLong = 61, nActualTimeSpanAvg = 49, nActualTimespan (damped) = 57
                            2017-09-13 12:49:22 CheckProofOfWork() hash=0000000009706efc0793c5b26d4a24488be0224a8cb4889c87e003bfbb8f8879
                            2017-09-13 12:49:22 CheckProofOfWork() nBits=473329684
                            2017-09-13 12:49:22 CheckProofOfWork() bnTarget.getuint256=0000000036701400000000000000000000000000000000000000000000000000
                            2017-09-13 12:49:22 CheckProofOfWork() hash=0000000009706efc0793c5b26d4a24488be0224a8cb4889c87e003bfbb8f8879
                            2017-09-13 12:49:22 CheckProofOfWork() nBits=473329684
                            2017-09-13 12:49:22 CheckProofOfWork() bnTarget.getuint256=0000000036701400000000000000000000000000000000000000000000000000
                            2017-09-13 12:49:22 CheckProofOfWork() hash=0000000009706efc0793c5b26d4a24488be0224a8cb4889c87e003bfbb8f8879
                            2017-09-13 12:49:22 CheckProofOfWork() nBits=473329684
                            2017-09-13 12:49:22 CheckProofOfWork() bnTarget.getuint256=0000000036701400000000000000000000000000000000000000000000000000
                            2017-09-13 12:49:22 ConnectBlock hashPrevBlock=3d352ee58088a8947481f692d1e23c77a301d8104458cae19f74e30faa65b01c
                            2017-09-13 12:49:22 ConnectBlock view.GetBestBlock()=3d352ee58088a8947481f692d1e23c77a301d8104458cae19f74e30faa65b01c
                            2017-09-13 12:49:22 AddToWalletIfInvolvingMe,hash=b89f5d1e8aedb165a3c0580e32837c76f6f2d7f6eaf03dbf3156d2eba00e5388 .
                            2017-09-13 12:49:22 FindStealthTransactions() tx:b89f5d1e8aedb165a3c0580e32837c76f6f2d7f6eaf03dbf3156d2eba00e5388,BOOST_FOREACH nOutputIdOuter=0 ,find txout...
                            2017-09-13 12:49:22 txout scriptPubKey= OP_DUP OP_HASH160 070be0e13966f496623c0fcbe3a0d4152e902aa1 OP_EQUALVERIFY OP_CHECKSIG
                            2017-09-13 12:49:22 txout hash = f2572e4760d154f7708b57f62678d48ee5648a9098202dbeb4c59892274d72dd
                            2017-09-13 12:49:22 UpdateTip: new best=d5459fc95d834862683a71cd6bde98a0b526b2ef55a60b1ff99a6d17aae29198  height=436028  log2_work=57.827711  tx=1509604  date=2014-10-29 15:41:32 progress=0.356094
                            2017-09-13 12:49:22 AddToWalletIfInvolvingMe,hash=b89f5d1e8aedb165a3c0580e32837c76f6f2d7f6eaf03dbf3156d2eba00e5388 .
                            2017-09-13 12:49:22 FindStealthTransactions() tx:b89f5d1e8aedb165a3c0580e32837c76f6f2d7f6eaf03dbf3156d2eba00e5388,BOOST_FOREACH nOutputIdOuter=0 ,find txout...
                            2017-09-13 12:49:22 txout scriptPubKey= OP_DUP OP_HASH160 070be0e13966f496623c0fcbe3a0d4152e902aa1 OP_EQUALVERIFY OP_CHECKSIG
                            2017-09-13 12:49:22 txout hash = f2572e4760d154f7708b57f62678d48ee5648a9098202dbeb4c59892274d72dd
                            2017-09-13 12:49:22 ProcessBlock: ACCEPTED
                            2017-09-13 12:49:22 ProcessBlock: Preliminary checks
                            2017-09-13 12:49:22 CheckProofOfWork() hash=2c7b236bbcb89e395243e153677f86d16ba9844395730a3c1f5eb00bd7a93cc0
                            2017-09-13 12:49:22 CheckProofOfWork() nBits=473151302
                            2017-09-13 12:49:22 CheckProofOfWork() bnTarget.getuint256=0000000033b74600000000000000000000000000000000000000000000000000
                            2017-09-13 12:49:22 ERROR: matches claimed amount, CheckProofOfWork() : hash doesn't match nBits
                            2017-09-13 12:49:22 CheckProofOfWork() hash=000000002010046f762ffa151be4d61323869f9bff6ee8955729cbfda8c0723c
                            2017-09-13 12:49:22 CheckProofOfWork() nBits=473151302
                            2017-09-13 12:49:22 CheckProofOfWork() bnTarget.getuint256=0000000033b74600000000000000000000000000000000000000000000000000
                            2017-09-13 12:49:22 AcceptBlockHeader,nHeight=436029
                            2017-09-13 12:49:22 GetNextWorkRequired pindexLast block Height=436028,nBits=473329684
                            2017-09-13 12:49:22 GetNextWorkRequired the next block Height=436029
                            2017-09-13 12:49:22 GetNextWorkRequired fork
                            2017-09-13 12:49:22 Difficulty rules regular blocks
                            2017-09-13 12:49:22 GetNextWorkRequired(), nActualTimespan = 43  before bounds
                            2017-09-13 12:49:22 RETARGET: nActualTimespanShort = 27, nActualTimespanMedium = 61, nActualTimespanLong = 61, nActualTimeSpanAvg = 49, nActualTimespan (damped) = 57
                            
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                            • wrapper
                              wrapper Moderators last edited by

                              The first time it does preliminary checks it says hash is different to what it then goes straight through CheckProofOfWork()…

                              hash=d31a46d558974e7b07c6f63a594bfba0fa435659ebca05108f669f58a6d34cfc

                              then :

                              hash=000000001bc0c162a3676627559a0ec6f62dd9876ad63d8382859d2ead802875

                              2017-09-13 12:48:46 CheckProofOfWork() hash=d31a46d558974e7b07c6f63a594bfba0fa435659ebca05108f669f58a6d34cfc 
                              2017-09-13 12:48:46 CheckProofOfWork() nBits=472148865 
                              2017-09-13 12:48:46 CheckProofOfWork() bnTarget.getuint256=00000000246b8100000000000000000000000000000000000000000000000000 
                              2017-09-13 12:48:46 ERROR: matches claimed amount, CheckProofOfWork() : hash doesn't match nBits
                              2017-09-13 12:48:46 CheckProofOfWork() hash=000000001bc0c162a3676627559a0ec6f62dd9876ad63d8382859d2ead802875 
                              
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                              • Wellenreiter
                                Wellenreiter Moderators last edited by wrapper

                                Neoscrypt is little endian, may be a byte swap will do the trick.

                                Was fighting with that for p2pool already.

                                Here is the python code snippet to get it running in p2pool.

                                 getwork._swap4(pack.IntType(256).pack(x['previous_block'])).encode('hex'), # prevhash
                                        x['coinb1'].encode('hex'), # coinb1
                                        x['coinb2'].encode('hex'), # coinb2
                                        [pack.IntType(256).pack(s).encode('hex') for s in x['merkle_link']['branch']], # merkle_branch
                                        getwork._swap4(pack.IntType(32).pack(x['version'])).encode('hex'), # version
                                        getwork._swap4(pack.IntType(32).pack(x['bits'].bits)).encode('hex'), # nbits
                                        getwork._swap4(pack.IntType(32).pack(x['timestamp'])).encode('hex'), # ntime
                                

                                Definition of swap4:

                                def _swap4(s):
                                if len(s) % 4:
                                    raise ValueError()
                                return ''.join(s[x:x+4][::-1] for x in xrange(0, len(s), 4))
                                

                                Not sure, how to realize that in C++

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                                • wrapper
                                  wrapper Moderators last edited by

                                  Testing 0.9.6.2- head

                                  @Wellenreiter @Bushstar
                                  I have tested head and am unable to compile with --qrcodes=yes

                                  undefined reference to ` QRCodeDialog::QRCodeDialog(QString const&, QString const&, bool, QWidget*)’
                                  
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                                  • Wellenreiter
                                    Wellenreiter Moderators last edited by Wellenreiter

                                    try --with-gui=qt5

                                    qt4 support is broken in 0.9x, but tested first and then selected by configure.

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                                    • wrapper
                                      wrapper Moderators last edited by

                                      I am compiling with the standard switches, exactly the same as before, except now qrcodes=no

                                      ./configure --with-gui=qt5 --enable-tests=no --enable-upnp-default --with-qrcode=no --enable-wallet=yes --enable-shared --disable-hardening LDFLAGS=“-L${BDB_PREFIX}/lib/” CPPFLAGS=“-I${BDB_PREFIX}/include/” CXXFLAGS=“$CXXFLAGS -fPIC -m64 -std=c++11”

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                                      • Wellenreiter
                                        Wellenreiter Moderators last edited by

                                        Then check, if you have a qrcodedialog in the …/qt/forms directory.

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                                        • wrapper
                                          wrapper Moderators last edited by wrapper

                                          Fixed.

                                          I’ve git cloned from head. There is nothing missing and I haven’t done anything to it except add my build.sh and change my compile to qrcodes=no to get it compile…

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                                          • wrapper
                                            wrapper Moderators last edited by wrapper

                                            Bitcoin 0.9.x Backports 2

                                            #68

                                            https://github.com/bitcoin/bitcoin/commit/0a94661e8db94e84ecbf1ea45a51fb3c7fb77283

                                            Disable SSLv3 (in favor of TLS) for the RPC client and server.

                                            TLS is subject to downgrade attacks when SSLv3 is available, and
                                            SSLv3 has vulnerabilities.

                                            The popular solution is to disable SSLv3. On the web this breaks
                                            some tiny number of very old clients. While Bitcoin RPC shouldn’t
                                            be exposed to the open Internet, it also shouldn’t be exposed to
                                            really old SSL implementations, so it shouldn’t be a major issue
                                            for us to disable SSLv3.

                                            There is more information on the downgrade attacks and disabling
                                            SSLv3 at https://disablessl3.com/ .

                                            src/rpcclient.cpp#L43

                                            -  context.set_options(ssl::context::no_sslv2);
                                            
                                            +  context.set_options(ssl::context::no_sslv2 | ssl::context::no_sslv3);
                                            

                                            src/rpcserver.cpp

                                            -    rpc_ssl_context->set_options(ssl::context::no_sslv2);
                                            
                                            +    rpc_ssl_context->set_options(ssl::context::no_sslv2 | ssl::context::no_sslv3);
                                            
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